cantwell



(No Model.) 2 Sheets-Sheet 1,

' T. OANTWELL.

FLOORING.

No. 412,946, Patented Oct. 15, 1889.

WITNESSES ATTORNEYS.

UNITED STATES PATENT OFFICE.

THOMAS CANTVVEIIL, OF BROOKLYN, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE NIGHTINGALE FLOOR COMPANY, OF NEIV YORK, N. Y.

FLOORING.

SPECIFICATION forming part of Letters Patent No. 412,946, dated October 15, 1889. v Application filed December 17, 1888- Serial No. 293,852, (No model.)

To all whom it may concern.-

Be it known that 1, THOMAS CANTWELL, of Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Flooring, of which the following is a full, clear, and exact description.

This invention relates to flooring, the object of the invention being to provide for the quick and easy laying of wooden facingstrips or blocks upon concrete floorssuch as are used in fire-proof buildings-in a manner such that the strips or blocks will be rigidly and firmly held to place.

To the end named the invention consists, essentially, of a series of longitudinally-slotted tubes arranged for connection with the base or body of the floor, a series of tie-bars arranged for connection with the facing strips or blocks, and fastening devices which. pass through the tie-bars and engage the, slotted tubes.

Although the flooring to be hereinafter described is more especially designed for use upon a concrete floor, still the flooring could be used upon any ordinary floor.

Reference is to be had to the accompany ing drawings, forming a part of this specification, in which similar figures and letters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional view of my improved flooring, the view being taken on line to w of Fig. 2. Fig. 2 is a plan view of a section of the flooring, parts being broken away. Fig. 3 is a sectional view on line 0c of Fig. 2. Fig. 4 is a plan View of a modified construction. Fig. 5 is a sectional view on line y 1 of Fig. 4; and Fig. 6 is a sectional view on line .2 e of Fig. 4:, parts being broken away.

In laying the flooring forming the subjectmatter of this application, I provide a number of tubes 10, formed with longitudinal slots 11. The tubes 10 are spaced and connected by strips 12, that are riveted to the tubes, as best shown in Fig. 1, rivets 13 being passed through the strips and through the tubes, as shown in the figure referred to. In addition to the strips 12, I connect anchor plates 14 t0 the tubes, said anchor-plates being arranged between the strips. The tubes 10 are of proper length to extend from side to side of the apartment, and the structure, made up as above described, is placed upon the floor. The space between the tubes is then filled with cement, these filled spaces being shown at 16, and above the cement I place a layer of any proper material 17, such material being'impervious to moisture. After the tubes 10 have been laid as above described a series of properly-united facing strips or blocks, which form a floor section A, each section being formed with longitudinal side slots a, is placed in position so as to extend at right angles to the tubes 10.

In the grooves a of the fiooi sections A there are placed tie-bars 20, which carry bolts 2 l, the shanks of said bolts extending through the slots 11. to engage nuts 22, which nuts are passed within the tubes through apertures 23, said apertures being located in any convenient position. After the floor-sections A have been adjusted to the required. position the bolts 21 are tightened by means of a screwdriver, which is brought into engagement with a nick formed in the head of each bolt, the nuts being held from turning owing to the fact that they will bind against the illuer walls of the tube. It will be noticed that the apertures through which the bolts 21 pass are at one side of the tiebars or strips 20. After the first floor-section A has been secured to place the second floor-section is adjusted so that it will abut against the first floorsec tion and secured to place in the manner above described, that edge of the second floor-section adjacent to the first fioor section engaging the strip of the first series. Instead of having the strip 20 of metal, (such as is shown at 20 in Figs. 1, 2, and 3,) the strip might be made of wood, as shown in Figs. 4, 5, and 6. In this case the strip would be shouldered to rest upon a shoulder Z2, formed at the edge of each floor-section of facing strips or blocks, and after the flooring has been laid the apertures within which the bolt-heads rested would be plugged.

Such a flooring as the one above described may be readily laid, and when laid will be held firmly to the main floor.

Having th us described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with a series of longitudinally-slotted tubes, of a series of fioorsections, tie-bars or retaining-strips bearing on shoulders formed at the edges of said floorsections, and fastening devices which connect the tie-bars and the tubes, substantially as described.

2 The combination, with a series of longitudinally-slotted tubes, of uniting-strips 12, connected to the tubes, floor-sections having shoulders, tie-bars or retaining-strips which rest upon said shoulders,bolts passing through 3. The combination, with a series of spaced and longitudinally-slotted tubes having enlarged apertures 23, of floor-sections, tie-bars or retaining-strips which engage shoulders formed on the floor-sections, and bolts passing through the retaining-strips and the slots of the tubes to engage nuts arranged within the tubes, substantially as described.

4. In an attaching device for floors, the combination, with a series of longitudinally- .slotted tubes, of bars by which said tubes are connected and spaced, anchor-plates con nected to the tubes, and bolts 21, which extend through the tube-slots, substantially as described.

THOMAS CANTNVELL.

Witnesses:

EDWARD KENT, Jr., C. SEDGWIOK. 

